1114

ÖLFLEX

ACCESSORIES

FLEXIMARK

SILVYN

SKINTOP

EPIC

HITRONIC

ETHERLINE

UNITRONIC

APPENDIX

For current information see:

www.lappgroup.com

Technical Tables

Assembly guidelines

The delivery drum must be transported as close as possible to the

installation location. Avoid rolling the cable drum unnecessarily. If it

is not possible to transport the drum directly to the system, we

recommend unreeling the cable from the drum using guide pulleys.

A drag rope and a cable grip should also be used.

The cable can only be unreeled using cable stands or unwinders and

only from above. When doing so, the cable must also be stretched

out straight, and must not be deflected or pulled over any sharp

edges. The cable temperature should not fall below +5 °C during this

process (Lapp’s recommendation).

The entire length of cable must be laid out prior to installation.

Avoid rewinding the cable from the delivery drum directly onto the

unit drum. When laying the cable, avoid “S”-shaped bends or other

similar deflections. The cable must be free of twists when wound on

the unit drum. Likewise, it must be possible to connect and fasten

the cable to the feed-in point without any twisting. (fig.

The core layer structure of windable ÖLFLEX

CRANE cables has an

“S”-shaped core stranding design. We therefore strongly recommend

that you ensure the first layer of the cable is wound onto the drum

in the correct direction, depending on the feed-in position of the

cable alongside the drum body, as shown in the figure

. Other-

wise the cores could become damaged.

If a feed-in point is passed over during operation, a pulling protec-

tion drum with the correct diameter should be used underneath

the travel path. At least 1-2 cable windings should be placed on

this drum in order to evenly distribute the tensile forces. A deflec-

tion funnel with a defined radius should be applied above the

drum.

To fasten the cable to the feed-in point, it is absolutely necessary

to use sufficiently large clamps or cable support grips in order to

ensure cable-friendly strain relief. The clearance between the

fastening and the drum should be at least 40 x D.

ÖLFLEX

CRANE NSHTÖU, ÖLFLEX

CRANE VS (N)SHTÖU and ÖLFLEX

CRANE PUR

With a fully unreeled cable, at least 2 cable windings should remain

on the unit drum to provide strain relief.

The bending diameter for ÖLFLEX

CRANE NSHTÖU, on cables

with an outer diameter of up to 21.5 mm, must not be less than

10 times the cable diameter, and 12.5 times for cables with larger

outer diameters.

With ÖLFLEX

CRANE VS (N)SHTÖU and ÖLFLEX

CRANE PUR, the

bending diameter must be at least 15 times greater than the cable

diameter. The relevant minimum bending radius is listed both on

the corresponding catalogue page and the product data sheet.

“S”-shaped bends in the cable should be avoided during operation.

However, if this is not possible, the space between the deflection

pulley axes must be at least 20 times the cable diameter for cables

with an outer diameter of less than 21.5 mm, and at least 25 times

for cables with larger outer diameters.

Cables which are suitable for this application are listed in selection

table A3-2. (fig.

10.

For the installation and operation of the cables ÖLFLEX

CRANE VS

(N)SHTÖU and ÖLFLEX

CRANE PUR, the maximum tension load of

the cable should be observed for each dimension based on the

integrated supporting elements (see product page in catalogue).

For cables with large outer diameters (approximately 21.5 mm and

above), we recommend using guide pulleys to minimise friction on

the outer sheath when changing direction. (fig.

11.

In order to prevent the cable from twisting, the inner contact

surface of the pulley must not have a concave shape. To ensure

that the cable runs smoothly, the inner width of the guiding groove

must be at least 10% greater than the outer diameter of the cable.

(fig.

12.

These cables fulfil the requirements stipulated by VDE 0250 and

VDE 0298-3 (use/installation). Any loads exceeding those specified

will reduce the service life of the cable:

INCORRECT

INCORRECT:

Pulley

CORRECT:

Pulley